CN114951364B - Rectangular pipe integrated forming die, hydraulic forming machine and forming method thereof - Google Patents
Rectangular pipe integrated forming die, hydraulic forming machine and forming method thereof Download PDFInfo
- Publication number
- CN114951364B CN114951364B CN202210277510.8A CN202210277510A CN114951364B CN 114951364 B CN114951364 B CN 114951364B CN 202210277510 A CN202210277510 A CN 202210277510A CN 114951364 B CN114951364 B CN 114951364B
- Authority
- CN
- China
- Prior art keywords
- forming
- die
- molding
- male die
- rectangular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
- B21D5/0209—Tools therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
本发明涉及一种矩形管一体成型模具及其液压成型机和成型方法，属于一种机加工设备。本发明提供一种矩形管一体成型模具及其液压成型机和成型方法，解决矩形管制造中分次折弯导致的效率低，不能一次成型的问题。为实现上述目的，本发明采用的技术方案是：本发明矩形管一体成型模具，包括下部成型模具、上部成型模具和液压机；所述下部成型模具的中部设有矩形槽，矩形槽的两侧设有突出的折边定位块，矩形槽宽度为方管的截面厚度或高度；上部成型模具包括一次成型凸模和二次成型凸模，一次成型凸模的中间设有二次凸模槽，所述二次成型凸模设置在该二次凸模槽中，二次成型凸模宽度匹配矩形槽宽度，两折边定位块宽度匹配一次成型凸模宽度。
The invention relates to a rectangular tube integrated forming mold, a hydraulic forming machine and a forming method thereof, and belongs to a kind of machining equipment. The invention provides a rectangular tube integrated forming mold, a hydraulic forming machine and a forming method thereof, which solves the problem of low efficiency and inability to form at one time due to staged bending in the manufacturing of rectangular tubes. In order to achieve the above object, the technical solution adopted by the present invention is: the rectangular tube integrated molding mold of the present invention includes a lower molding mold, an upper molding mold and a hydraulic press; the middle part of the lower molding mold is provided with a rectangular groove, and both sides of the rectangular groove are provided with There is a protruding hem positioning block, and the width of the rectangular groove is the cross-sectional thickness or height of the square tube; the upper forming mold includes a primary forming punch and a secondary forming punch, and a secondary punch groove is provided in the middle of the primary forming punch, so The secondary forming punch is arranged in the secondary punch groove, the width of the secondary forming punch matches the width of the rectangular groove, and the width of the two folding positioning blocks matches the width of the primary forming punch.
Description
Technical Field
The invention relates to a rectangular pipe integrated forming die, a hydraulic forming machine and a forming method thereof, and belongs to machining equipment.
Background
The current rectangular pipe structure is through buckling or welding shaping, and welding shaping's manufacturing effect is high, can produce on the production line fast. However, the welded rectangular tube structure is only suitable for bearing longitudinal stress, and side stress can lead to side deformation due to unbalanced stress caused by welding.
The rectangular pipe formed in this way is formed by bending a whole metal plate, so that the rectangular pipe can bear larger torsion and has good side stress condition.
At present, rectangular pipes are formed, single bending is adopted for bending respectively, and one square pipe needs to be subjected to multiple bending operations. Or die casting in two steps in a forming die.
In either mode, the bending needs to be performed in multiple times, the direction and the working position of the bending need to be changed for processing, the processing efficiency is low, and the bending machine is not suitable for large-scale factory production.
Disclosure of Invention
The invention provides an integral forming die for rectangular pipes, a hydraulic forming machine and a forming method thereof, and solves the problems that the efficiency is low and one-step forming cannot be realized due to the fact that the rectangular pipes are bent in a split mode in manufacturing.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention relates to an integral forming die for a rectangular tube,
comprises a lower forming die, an upper forming die and a hydraulic press;
the middle part of the lower forming die is provided with a rectangular groove, two sides of the rectangular groove are provided with protruding flanging positioning blocks, and the width of the rectangular groove is the section thickness or the height of the square tube;
the upper forming die comprises a primary forming male die and a secondary forming male die, a secondary male die groove is formed in the middle of the primary forming male die, the secondary forming male die is arranged in the secondary male die groove, the width of the secondary forming male die is matched with the width of the rectangular groove, and the width of the two edge folding positioning blocks is matched with the width of the primary forming male die.
As a preferred alternative to this,
the inner edge and the outer edge of the rectangular groove of the lower forming die are arc-shaped fillet edges, the inner angle edge of the flanging positioning block is an arc-shaped fillet edge, and the side edge edges of the primary forming male die and the secondary forming male die are fillet edges.
Further preferably, the secondary molding male die is a square column with a square section, the size of the square column is the same as the inner diameter of a square tube to be processed, one end of the square column is hinged with one end of a secondary molding pressing support, the other end of the secondary molding pressing support is provided with a connecting piece for connecting the square column, and the connecting piece is a detachable separation square column and the secondary molding pressing support.
Further preferably, the lower forming die comprises a bottom template, a middle secondary forming die and two primary split dies, each part is of a detachable structure, the middle secondary forming die is fixed at the middle position of the upper side surface of the bottom template, the rectangular groove is formed in the middle of the secondary forming die, the two primary split dies are respectively arranged at two sides of the secondary forming die, the bottom of the primary split die is fixed on the bottom template, the face of the primary split die, which is close to the secondary forming die, is a plane, and the edge position of the primary split die is a protruding flanging positioning block.
Further preferably, a limiting protrusion is arranged on the outer side of the top of the edge folding positioning block, and the metal plate to be processed and formed is prevented from being arranged on the edge folding positioning block, and two sides of the metal plate are limited by the edge folding positioning block.
Further preferably, the primary molding male die is of a split structure and is arranged on two sides of the secondary molding male die respectively, the rear parts of the primary molding male die and the secondary molding male die are respectively provided with a guide mechanism and a hydraulic driving mechanism, and the hydraulic driving structure at the rear part of the split primary molding male die synchronously drives the primary molding male die to move.
Further preferably, the connecting piece comprises a locking hole arranged on the end face of the square column, a fixing hole on the secondary molding pressing support and a rotating lock pin, wherein the rotating lock pin comprises a fixing shaft and a rotating pin, the fixing shaft is arranged in the fixing hole, the rotating pin is arranged in the locking hole, and the rotating pin is manually or mechanically driven to be pulled out of or inserted into the locking hole.
The invention relates to a rectangular pipe forming hydraulic machine, which is provided with the rectangular pipe integrated forming die in claim 6 or 7, and is characterized in that the high hydraulic machine comprises a bottom seat, a top frame and a supporting column, the lower forming die is arranged on the bottom seat of the hydraulic machine, the upper forming die is arranged below the top frame of the hydraulic machine, a one-time forming pressing oil cylinder and a two-time forming pressing oil cylinder are arranged in the top frame of the hydraulic machine, the lower end of a piston rod of the one-time forming pressing oil cylinder is connected with the one-time forming male die, and the two-time forming pressing oil cylinder is connected with the two-time forming male die.
The rectangular pipe forming method of the rectangular pipe forming hydraulic press comprises the following steps,
1) Horizontally placing the metal plate between limit protrusions on two sides of the lower forming die;
2) The primary molding male die and the secondary molding male die of the upper molding die are driven by a primary molding pressing oil cylinder and a secondary molding pressing oil cylinder to press downwards together, a metal plate is pressed between the flanging positioning blocks of the lower molding die, and the edges of the two sides of the metal plate are bent;
3) The one-step forming male die is driven by the one-step forming lower pressure oil cylinder to be lifted upwards to a high position;
4) The secondary molding male die is driven by a secondary molding lower pressure oil cylinder to continuously press down, a metal plate is pressed into a rectangular groove of the secondary molding female die, and the middle part of the metal plate is bent to form a rectangular pipe with an opening seam at the upper part;
5) And the square column and the secondary molding pressing support are separated from one end of the square column of the primary molding male die by a connecting piece, the rectangular pipe is moved, and the square column is separated from the rectangular pipe, so that the rectangular pipe molding is completed.
The invention has the advantages that:
the rectangular pipe is processed and formed at one step, so that the processing and manufacturing efficiency of the rectangular pipe is improved;
by designing new die forming equipment, a set of dies are bent into rectangular square tubes, the manufacturing time of a single device is shortened, and the manufacturing efficiency is improved;
the molding manufacture at the same position avoids time waste caused by repeated clamping in the manufacturing of the parts;
the combination of the forming equipment is realized by one hydraulic press, so that the occupied area of the equipment is reduced.
Drawings
FIG. 1 is a block diagram of a rectangular tube forming hydraulic machine of the present invention.
Fig. 2 is a drawing of a rectangular tube forming die of the present invention and a drawing of a metal plate placed before the start of processing.
Fig. 3 is a block diagram of the rectangular tube forming die of the present invention after one-time forming.
Fig. 4 is a structural view of the rectangular tube molding die of the present invention after secondary molding.
Fig. 5 is a structural diagram of the rectangular tube forming hydraulic press and the rectangular tube integral forming die of the invention.
Reference numerals: 1. the die comprises a primary forming male die, 2 secondary forming male dies, 3 secondary male die grooves, 4 secondary forming female die grooves, rectangular grooves, 5 edge folding positioning blocks, 6, metal plates, 7 rectangular square tubes, 8 secondary forming pressing supports, 9, connecting pieces, 10, bottom templates, 11, secondary forming female dies, 12, primary split dies, 13, limiting protrusions, 14, bottom seats, 15, top frames, 16, supporting columns, 17, a primary forming pressing oil cylinder, 18 and a secondary forming pressing oil cylinder.
Detailed Description
The invention comprises a rectangular pipe integrated forming die and a forming method of a rectangular pipe of a hydraulic press.
A specific rectangular tube integral forming die structure of the invention is shown in figure 2,
comprises a lower forming die and an upper forming die;
the middle part of the lower forming die is provided with a rectangular groove 4, two sides of the rectangular groove 4 are provided with protruding flanging positioning blocks 5, and the width of the rectangular groove 4 is the section thickness or the height of the square tube;
the upper forming die comprises a primary forming male die 1 and a secondary forming male die 2, a secondary male die groove 3 is formed in the middle of the primary forming male die 1, the secondary forming male die 2 is arranged in the secondary male die groove 3, the width of the secondary forming male die 2 is matched with the width of the rectangular groove 4, and the width of the two edge folding positioning blocks 5 is matched with the width of the primary forming male die 1.
The inner edge and the outer edge of the rectangular groove 4 of the lower forming die are arc-shaped fillet edges, the inner angle edge of the flanging positioning block 5 is an arc-shaped fillet edge, and the side edge edges of the primary forming male die 1 and the secondary forming male die 2 are fillet edges.
The secondary molding male die 2 is a square column with a square section, the size of the square column is the same as the inner diameter of a square tube to be processed, one end of the square column is hinged to one end of a secondary molding pressing support 8, the other end of the secondary molding pressing support 8 is provided with a connecting piece 9 for connecting the square column, and the connecting piece 9 is a detachable separation square column and the secondary molding pressing support 8.
The lower forming die comprises a bottom die plate 10, a middle secondary forming die 11 and two primary split dies 12, wherein each part is of a detachable structure, the middle secondary forming die 11 is fixed at the middle position of the upper side surface of the bottom die plate 10, a rectangular groove 4 is formed in the middle of the secondary forming die 11, the two primary split dies 12 are respectively arranged at two sides of the secondary forming die 11, the bottom of the primary split die 12 is fixed on the bottom die plate 10, the surface of the primary split die 12, which is close to the secondary forming die 11, is a plane, and the edge position of the primary split die 12 is a protruding flanging positioning block 5.
The outer side of the top of the edge folding positioning block 5 is provided with a limiting protrusion 13, a metal plate to be processed and formed is placed on the edge folding positioning block 5, and two sides of the metal plate are limited by the edge folding positioning block 5.
The one-time forming male die 1 is of a split structure and is arranged on two sides of the two-time forming male die 2, a guide mechanism and a hydraulic driving mechanism are respectively arranged on the rear parts of the one-time forming male die 1 and the two-time forming male die 2, and the hydraulic driving structure at the rear part of the split one-time forming male die 1 synchronously drives the one-time forming male die 1 to move.
The connecting piece 9 is shown in fig. 4, and comprises a locking hole arranged on the end face of the square column, a fixing hole on the secondary molding pressing support 8 and a rotating lock pin, wherein the rotating lock pin comprises a fixing shaft and a rotating pin, the fixing shaft is arranged in the fixing hole, the rotating pin is arranged in the locking hole, and the rotating pin is manually or mechanically driven to be pulled out of or inserted into the locking hole.
The rectangular pipe forming hydraulic press is internally provided with a rectangular pipe integrated forming die, the structure is shown in fig. 5, the hydraulic press comprises a bottom seat 14, a top frame 15 and a support column 16, the lower forming die is arranged on the bottom seat 14 of the hydraulic press, the upper forming die is arranged below the top frame 15 of the hydraulic press, the top frame 15 of the hydraulic press is internally provided with a one-time forming pressing cylinder 17 and a two-time forming pressing cylinder 18, the lower end of a piston rod of the one-time forming pressing cylinder 17 is connected with the one-time forming male die 1, and the two-time forming pressing cylinder 18 is connected with the two-time forming male die 2.
The invention relates to a rectangular pipe forming method of a rectangular pipe forming hydraulic press, which is characterized by comprising the following steps,
1) The metal plate is horizontally placed between the limit protrusions 13 on both sides of the lower molding die, as in the state of fig. 1,
2) The primary molding male die 1 and the secondary molding male die 2 of the upper molding die are driven by the primary molding lower pressure oil cylinder 17 and the secondary molding lower pressure oil cylinder 18 to be pressed downwards, the metal plate is pressed between the flanging positioning blocks 5 of the lower molding die, and the two side edges of the metal plate are bent, as shown in the state of fig. 2;
3) The one-time molding male die is driven by the one-time molding pressing oil cylinder 17 to be lifted upwards to a high position;
4) The secondary molding male die 2 is driven by the secondary molding lower pressure oil cylinder 18 to continuously press down, a metal plate is pressed into the rectangular groove 4 of the secondary molding female die 11, and the middle part of the metal plate is bent to form a rectangular pipe with an opening seam at the upper part, as shown in the state of fig. 3;
5) The square post and the secondary molding pushing support 8 are detached from the square post connecting piece 9 at one end of the primary molding male die 1, the rectangular pipe is moved, the square post is separated from the rectangular pipe, and the rectangular pipe molding is completed.
The rectangular pipe is processed and formed at one step at one station, so that the processing and manufacturing efficiency of the rectangular pipe is improved;
by designing new die forming equipment, a set of dies are bent into rectangular square tubes, the manufacturing time of a single device is shortened, and the manufacturing efficiency is improved;
the molding manufacture at the same position avoids time waste caused by repeated clamping in the manufacturing of the parts;
the combination of the forming equipment is realized by one hydraulic press, so that the occupied area of the equipment is reduced.
Claims (5)
1. The rectangular pipe integrated forming die comprises a lower forming die and an upper forming die and is characterized in that a rectangular groove (4) is formed in the middle of the lower forming die, two sides of the rectangular groove (4) are planes, a protruding flanging positioning block (5) is arranged at the edge position, and the width of the rectangular groove (4) is the section thickness or the height of a square pipe; the upper forming die comprises a primary forming male die (1) and a secondary forming male die (2), a secondary male die groove (3) is formed in the middle of the primary forming male die (1), the secondary forming male die (2) is arranged in the secondary male die groove (3), the width of the secondary forming male die (2) is matched with the width of the rectangular groove (4), and the widths of the two edge folding positioning blocks (5) are matched with the width of the primary forming male die (1); the secondary molding male die (2) is a square column with a square section, the size of the square column is the same as the inner diameter of a square tube to be processed, one end of the square column is hinged to one end of a secondary molding pressing support (8), a connecting piece (9) for connecting the square column is arranged at the other end of the secondary molding pressing support (8), and the square column and the secondary molding pressing support (8) can be detached and separated by the connecting piece (9); the lower forming die comprises a bottom die plate (10), a middle secondary forming die (11) and two primary split dies (12), wherein each part is of a detachable structure, the middle secondary forming die (11) is fixed at the middle position of the upper side surface of the bottom die plate (10), the middle of the secondary forming die (11) is provided with a rectangular groove (4), the two primary split dies (12) are respectively arranged at two sides of the secondary forming die (11), the bottom of the primary split die (12) is fixed on the bottom die plate (10), the top surface of the primary split die (12) close to the secondary forming die (11) is a plane, and the edge position is a protruding edge folding positioning block (5); the one-time forming male die (1) is of a split structure and is arranged on two sides of the two-time forming male die (2), a guide mechanism and a hydraulic driving mechanism are respectively arranged at the rear parts of the one-time forming male die (1) and the two-time forming male die (2), and the hydraulic driving structure at the rear part of the split one-time forming male die (1) synchronously drives the one-time forming male die (1) to move; the connecting piece (9) comprises a locking hole arranged on the end face of the square column, a fixing hole on the secondary forming pressing support (8) and a rotating lock pin, wherein the rotating lock pin comprises a fixing shaft and a rotating pin, the fixing shaft is arranged in the fixing hole, the rotating pin is arranged in the locking hole, and the rotating pin is manually or mechanically driven to be pulled out of or inserted into the locking hole.
2. The rectangular pipe integrated forming die according to claim 1, wherein the inner edge and the outer edge of the rectangular groove (4) of the lower forming die are arc-shaped fillet edges, the inner edge of the flanging positioning block (5) is an arc-shaped fillet edge, and the side edge edges of the primary forming punch (1) and the secondary forming punch (2) are fillet edges.
3. The rectangular pipe integrated molding die according to claim 1, wherein a limiting protrusion (13) is arranged on the outer side of the top of the flanging locating block (5), a metal plate to be processed and molded is placed on the flanging locating block (5), and two sides of the metal plate are limited by the flanging locating block (5).
4. The utility model provides a rectangular pipe shaping hydraulic press, is equipped with rectangular pipe integrated into one piece mould in claim 3, characterized by, the hydraulic press includes bottom seat (14), top frame (15) and support column (16), lower part forming die sets up on bottom seat (14) of hydraulic press, upper portion forming die sets up in top frame (15) below of hydraulic press, is equipped with under one shot forming in top frame (15) of hydraulic press and pushes down hydro-cylinder (17) and post forming down hydro-cylinder (18), the piston rod lower extreme of pressing hydro-cylinder (17) is connected under the one shot forming terrace die (1), under the post forming press hydro-cylinder (18) connect post forming terrace die (2).
5. A rectangular pipe molding method of a rectangular pipe molding hydraulic machine as claimed in claim 4, comprising the steps of,
1) The metal plate is horizontally placed between limit protrusions (13) on two sides of the lower forming die;
2) The primary molding male die (1) and the secondary molding male die (2) of the upper molding die are driven by a primary molding lower pressure oil cylinder (17) and a secondary molding lower pressure oil cylinder (18) to be pressed downwards together, a metal plate is pressed between the flanging positioning blocks (5) of the lower molding die, and two side edges of the metal plate are bent;
3) The one-time molding male die (1) is driven by the one-time molding lower pressure oil cylinder (17) to be lifted upwards to a high position;
4) The secondary molding male die (2) is driven by a secondary molding lower pressure oil cylinder (18) to continuously press downwards, a metal plate is pressed into a rectangular groove (4) of the secondary molding female die (11), and the middle part of the metal plate is bent to form a rectangular pipe with an opening seam at the upper part;
5) And a square column and a secondary molding pressing support (8) are separated from a square column end connecting piece (9) of the secondary molding male die (2), the rectangular pipe is moved, and the square column is separated from the rectangular pipe, so that the rectangular pipe molding is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210277510.8A CN114951364B (en) | 2022-03-21 | 2022-03-21 | Rectangular pipe integrated forming die, hydraulic forming machine and forming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210277510.8A CN114951364B (en) | 2022-03-21 | 2022-03-21 | Rectangular pipe integrated forming die, hydraulic forming machine and forming method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114951364A CN114951364A (en) | 2022-08-30 |
| CN114951364B true CN114951364B (en) | 2023-10-13 |
Family
ID=82975538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210277510.8A Active CN114951364B (en) | 2022-03-21 | 2022-03-21 | Rectangular pipe integrated forming die, hydraulic forming machine and forming method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114951364B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116140403B (en) * | 2022-10-13 | 2025-09-02 | 中山玖美塑胶制品有限公司 | A production line for ultra-thin seamless metal pipes |
| CN116550836B (en) * | 2023-04-06 | 2026-04-28 | 陕西箴铭新材料科技有限公司 | Extrusion molding die and extrusion flanging method for frame support components for aircraft |
| CN116689560B (en) * | 2023-07-25 | 2025-09-19 | 陕西箴铭新材料科技有限公司 | Forming die and forming method for arc bending sheet for aviation |
| CN116652026B (en) * | 2023-07-25 | 2024-01-26 | 双强电子科技(昆山)有限公司 | Stamping forming device and method for machining automobile parts |
| CN117066356B (en) * | 2023-10-17 | 2023-12-22 | 山东宏泰电器有限公司 | Bending riveting equipment for preparing refrigerator liner port-shaped coaming |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01162522A (en) * | 1987-12-18 | 1989-06-27 | Nakao Giken Kogyo:Kk | Forming method for corner round square cylindrical body |
| JPH11290940A (en) * | 1998-04-15 | 1999-10-26 | Topre Corp | Method of manufacturing square pipe |
| CN1308999A (en) * | 2000-02-04 | 2001-08-22 | 株式会社理光 | Tube body and method for forming tube body |
| CN101767127A (en) * | 2010-01-20 | 2010-07-07 | 孙天明 | Forming method of bending wave steel webs and special module |
| CN102164691A (en) * | 2008-09-25 | 2011-08-24 | 杰富意钢铁株式会社 | Method of manufacturing closed structural member, press-forming device, and closed structural member |
| CN107405669A (en) * | 2015-03-03 | 2017-11-28 | 新日铁住金株式会社 | Impact forming method and punch forming device |
| CN207288617U (en) * | 2017-09-26 | 2018-05-01 | 芳源企业（上海）有限公司 | Two folding mould of one-pass molding |
| CN109967604A (en) * | 2019-03-07 | 2019-07-05 | 北京中益宏宇工贸有限公司 | A kind of stamping composite die and forming method for forming automobile sheet metal parts |
| CN110538907A (en) * | 2019-09-23 | 2019-12-06 | 安徽省科昌机械制造股份有限公司 | combined type metal plate buckling groove mold forming machine |
| CN110947803A (en) * | 2019-12-06 | 2020-04-03 | 株洲广锐电气科技有限公司 | Part bending device for electronic product production |
| CN211464429U (en) * | 2019-12-10 | 2020-09-11 | 李增红 | Rectangular pipe manufacturing die |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2719129B2 (en) * | 1996-04-10 | 1998-02-25 | 双福鋼器株式会社 | Method for manufacturing long steel members |
-
2022
- 2022-03-21 CN CN202210277510.8A patent/CN114951364B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01162522A (en) * | 1987-12-18 | 1989-06-27 | Nakao Giken Kogyo:Kk | Forming method for corner round square cylindrical body |
| JPH11290940A (en) * | 1998-04-15 | 1999-10-26 | Topre Corp | Method of manufacturing square pipe |
| CN1308999A (en) * | 2000-02-04 | 2001-08-22 | 株式会社理光 | Tube body and method for forming tube body |
| CN102164691A (en) * | 2008-09-25 | 2011-08-24 | 杰富意钢铁株式会社 | Method of manufacturing closed structural member, press-forming device, and closed structural member |
| CN101767127A (en) * | 2010-01-20 | 2010-07-07 | 孙天明 | Forming method of bending wave steel webs and special module |
| CN107405669A (en) * | 2015-03-03 | 2017-11-28 | 新日铁住金株式会社 | Impact forming method and punch forming device |
| CN207288617U (en) * | 2017-09-26 | 2018-05-01 | 芳源企业（上海）有限公司 | Two folding mould of one-pass molding |
| CN109967604A (en) * | 2019-03-07 | 2019-07-05 | 北京中益宏宇工贸有限公司 | A kind of stamping composite die and forming method for forming automobile sheet metal parts |
| CN110538907A (en) * | 2019-09-23 | 2019-12-06 | 安徽省科昌机械制造股份有限公司 | combined type metal plate buckling groove mold forming machine |
| CN110947803A (en) * | 2019-12-06 | 2020-04-03 | 株洲广锐电气科技有限公司 | Part bending device for electronic product production |
| CN211464429U (en) * | 2019-12-10 | 2020-09-11 | 李增红 | Rectangular pipe manufacturing die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114951364A (en) | 2022-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114951364A (en) | Rectangular pipe integral forming die and hydraulic forming machine and forming method thereof | |
| CN104070129B (en) | Hot extrusion forging die for pipe with flange and deep blind taper hole shaft and forging technology thereof | |
| CN108453177A (en) | A kind of nuclear fuel assembly locking tube punching die | |
| CN211464429U (en) | Rectangular pipe manufacturing die | |
| CN115582504B (en) | Forging die, device and method for double-bell-mouth aluminum alloy special-shaped pipe fitting | |
| CN111097837A (en) | Reverse punching die for round pipe parts | |
| CN106623485A (en) | Turbocharging oil return pipe forming device and process | |
| CN220497434U (en) | Special-shaped steel template manufacturing device | |
| CN119327972A (en) | Anti-deformation processing device and processing method for aviation thin-walled parts | |
| CN219786060U (en) | A mold for pump body flow channel | |
| CN219335466U (en) | Control bending shaping resilience warp frock | |
| CN212703834U (en) | Flattening die for stainless steel water heating bent pin | |
| CN214161117U (en) | Mould of blade circle on area material | |
| CN210059523U (en) | Multi-station bending die for front support of trailer | |
| CN115255132A (en) | Single sheet forming method of EGR housing | |
| CN223629294U (en) | A cutting, rolling, and shaping die for automotive axle housing sleeve connecting rings. | |
| CN216937824U (en) | Trapezoidal box molding tool | |
| CN206810881U (en) | Crystallizer round copper pipe composite multi-station extrusion die | |
| CN223011633U (en) | A trimming device for forged flange forging | |
| CN223699056U (en) | Composite pipe production equipment | |
| CN223543926U (en) | Novel interactive wedge mechanism | |
| CN218015114U (en) | Flattening forming tool for end of steel pipe | |
| CN214079082U (en) | A tooling die for pressing rivets for pipe fittings | |
| CN220614382U (en) | Hollow thin-wall part pressing device | |
| CN215315433U (en) | Finishing tool for producing elastic pin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230918 Address after: 277400 Grand Canal Qihang Intelligent Manufacturing Science and Technology Innovation Park, Taierzhuang District, Zaozhuang City, Shandong Province Applicant after: Shandong Heli Construction Machinery Co.,Ltd. Address before: 277100 east courtyard, 100m north of the junction of Xichang Road and Zhongxing Avenue, Shizhong District, Zaozhuang City, Shandong Province Applicant before: Zaozhuang Baoyuan Construction Machinery Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20251020 Address after: 277100 Shandong Province Zaozhuang City Shi Zhong District Wenhua Middle Road 156.NO Patentee after: Shandong Langao Intelligent Equipment Co.,Ltd. Country or region after: China Address before: 277400 Grand Canal Qihang Intelligent Manufacturing Science and Technology Innovation Park, Taierzhuang District, Zaozhuang City, Shandong Province Patentee before: Shandong Heli Construction Machinery Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |